Concrete-mold.



W. ALEXANDER.

OONORBTE MOLD.

APPLICATION FILED JULY17, 1908.

Patented May 25, 1909.

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W. H ALEXANDER.

CONCRETE MOLD.

APPLICATION FILED JULY 17, 1908.

1}SHEETS-SHEET 2.

Patented May 25,

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To all whom it may concern:

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f rrn sns r rn r WILLIAM HENRY ALEXANDER, or LONG BRANCH, NEW JERSEY.

CONGRETE-MQLD.

Be it known that 1, WILLIAM H. ALEX- ANDER, a citizen of the United States, and a 1 resident of Long Branch, in the county of Monmouthand State, of New Jersey, have 1 invented new and Improved Concrete- Mold, of which the following is a full, clear, and exact description;

My invention relates to concrete molds, and .it has for its'object to provide a mold which will more readily permit of a concrete block being formedwith its exterior surface of a different mixture from its body; and my invention also has in view to provide means to remove the concrete block from the mold with little trouble, and with no danger of Still other objects of the invention will be found in the following complete description of the invention. 1 1 1 In this specification I will describe the i preferredform of my invention, but it will be understood that I; do not limit myself thereto, as I consider myself entitled to all forms and embodiments of the invention which may be held to fall within the scope of the appended claims.

Re erence is to be had to the accompanying drawings, forming apart of this specification, in which similar characters of ref erence indicate corresponding parts in all the Figure 1 is a rear elevation of the invention; 2 is a plan view of the same; Fig. 3 is a perspective viewshowing a concrete curb block which has been formedin my mold; Fig. 4 is aside elevation of the invention on a smaller scale; Fig. 5 is a sectional side elevation of theinvention on the same scale as Fig. 4;, but without the removable side and end pieces and the olampsby' which they are secured 1 The body of thejmold is also shown in theposition'which it will assume when the concreteblock is deposited; Fig. 6 is a perspective view of the removable end piece;

Fig.7 is a perspective view of-the removable side piece and Fig. 8 1s, a perspective view of one of theside clamps. y a I I Byireferring to the'drawings, it will be seen thata frame '1, suitably braced, is supported on a platform 2, the platformbeing' mounted 011 rollers 3. In the frame 1 there are bearings 4,in which is journaled a shaft 5, andto this shaft5 is secured a body 6,

which has anend 7 integral therewith, and which has beneath its bottom, longitudi- Specification of Letters Patent.

Application filed. July 17, 1908.

Patented. May 25, 1909.

Serial No. 444,112.

nal strengthening ribs 8, and a transverse strengthening rib 9.

As shown in Fig. 5 of the drawings, the integral end 7 of the body 6 extends below the bottom of the body and unites with the longitudinal supporting ribs 8.

p In the construction which I prefer, the bottom of the body 6 and the longitudinal ribs 8 approach each other toward the open end of the body, and at the sides of this open end the nearest longitudinal ribs are continued to the outer surfaces of the bottom of the body as at 10, thus affording the necessary strength to permit members 11 of supports 12 to engage them, to hold the body of the mold with its bottom substantially in a horizontal plane. These supports 12 are pivoted to the platform 2, so that they may be turned to permit the body 6 to assume the position shown in Fig. 5 of the drawings, thereby permitting the concrete block to be deposited. between the members of the platform 2. The members of the platform 2, are connected by a bar 13 which serves to act as a stop for the body when it is rotated in the frame 1, and its bottom assumes the upright position shown in Fig. 5, which will permit the concrete block to be deposited between the members of the platform 2 upon the floor which is but a couple of inches below the lowermost position of the body when it is rotated to the position shown in Fig. 5.

The body 6 is secured to the shaft 5 by means of bolts 14, or by any other appropriate means. It will be understood, however, that these bolts engage the body at opposite sides, so that they will not interfere with the even inner surfaces of the body. 15 are provided, one for either side of the body 6, the side pieces being of such a configuration that, they will fit snugly against the bottom and the integral end of the body and when these side pieces 1 5 are in position, an end piece 16 is disposed against the open I end of the body, the end. piece having tenons 17, one at either side, and tenons 18 at its bottom, the tenons 18 engaging the bottom of the body and the inner sides of the tenons 17 engaging with the side members 1 5 Side clamps 19 are then placed'in position, one at either side of the body, flanges 20 at the ends of the clamps fitting against the outer sides of the tenons 17 and threaded portions 21 of the clamps 19 fitting in slots 22 at the back of the body, as is best shown in Fig. 1. Lever nuts 23 mesh with the threaded portions 21 of the clamps 19, and when these lever nuts are screwed down it will be understood that the flanges 20 will be drawn snugly against the tenons 17 of the end piece 16, which will securely hold the end piece in position; the other sides of the said tenons 17 resting against the side pieces 15 and the tenons 18 of the end piece 16 resting against the bottom of the body 6.

When the removable sides and the removable end piece have been adjusted as has just been described, by a movement of a lever 24, the shaft 5 may be rocked, which will bring the bottom of the body 6 to a position substantially horizontal, when the supports 12 may be rotated on their bases so that the members will engage the portions 10 of the body to so sup ort it. The body of the mold may then be fi led to the desired depth with the concrete, and by first covering the bottom and the integral end of the body, an outer and finer surface for the concrete block may be obtained. In Fig. 3, this outer and finer surface is shown at 25, while the inner and body of the block is shown at 26.

In practice, I find it desirable to make grooves 27 along the sides of the curbing, so that when the several blocks of curbing are in alinement and close together, these grooves 27 may be filled with cement to assist in holding the blocks in position. These grooves 27 are formed by providing the side pieces 15 with inner ribs 28.

When the body of the mold has been filled with concrete, either with or without an outer dressing along the inner surfaces of the integral end and the bottom of the body, an

i if upper clamp 29, having a flange 31, is used,

this flange 31 fitting in a mortise 30 in the end piece 16, and the clamp 29 having an opposite flange 32 which extends over an outer flange 33 at the top of the integral end 7 of the body. This flange 32 has a threaded orifice therein in which meshes the screw of a thumbscrew 34 and when the thumbscrew 34 is turned home, the clamp 29 is held with its flange 31 pressing against the removable end piece 16. The object in using this upper clamp 29 is to furnish additional support for the end piece 16 when the supports 12 are rotated and the shaft 5 is rocked, permitting the body 6 to assume the position shown in Fig. 5; and when the body with the concrete block therein is in the said position, the upper clamp 29 is first freed by means of its thumbscrew 34, which will permit the concrete block to commence to settle with the end piece 16 on the ground, after which the side clamps 19 are freed by unscrewing the screw levers 23, which will finally permit the end piece 1.6 to rest on the ground, with the concrete block disposed thereon. The upper clam 29 and the side clamps 19 may then be wholly removed, inasmuch as the flange 31 and the upper clamp 29 engage the mortise 30 in the end piece 16 and the flanges 20 of the side clamps 19 engage the tenons 17 of the end piece. After the concrete block with the end piece 16 has reached the ground, the side pieces 15 may be readily removed and the mold with its frame and platform may be rolled away. The concrete block 35 will then be found to be resting on the end piece 16, after which the device may be used again, another and similar end piece serving the same purpose as the end piece 16, the several end pieces serving as resting places for the concrete blocks until they are to be removed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a concrete mold, a frame, a body rotatably mounted in the frame, the body having a bottom, one end of the body being permanently secured relatively thereto, removable side pieces for the body which are disposed thereon at either side and form a continuation of the end and extending to the open end of the body, a removable end piece which is disposed at the open end of the body engaging the bottom and sides of the body with its outer side beyond the terminals of the bottom and sides, means for clamping the removable end piece in position and means to free the said means gradually to permit of the deposit of the removable end piece on the ground when the bottom of the body is vertically disposed.

2. In a concrete mold, a frame, a body having trunnions which are journaled in the frame, the body having a bottom, an end piece of the body being permanentlysecured relatively thereto, removable side pieces for the body which are disposed on either side of the upper surface of the bottom of the body I forming a continuation of the endpiece and extending to the open end, a removable end piece which is disposed at the open end of the body engaging its bottom and sides, tenons on the removable end piece which engage the terminals of the sides and bottom of the body but which do not prevent the removable end piece from falling when the body is rotated so that its bottom is substantially perpendicularly disposed, means for holding the removable sides and end pieces in position and means to free the said means gradually to permit of the deposit of the removable end iece on the ground when the bottom of the ody is vertically disposed.

3. In a concrete mold, a frame, a body having trunnions which are journaled in the frame, the body having a bottom, an end piece of the body being permanently secured relatively thereto, removable side pieces for I the body which are disposed on either side of the upper surface of the bottom of the body forming a continuation of the end piece and extending to the open end, a removable end piece which is disposed at the open end of the body engaging. its bottom and sides, tenons movable sides and end pieces in position,

means for; holding the body with its bottom i to free the said means gradually to permit of the deposit of the removable end piece on the substantially in a horizontal position means ground when the bottom of the body is veri i tically'disposed.

4; In a concrete mold, a frame, a body rotatably mounted in the frame, the body having a bottom andan end piece which is permanently secured relatively thereto, removable side pieces for the body which are disposed on either side of the upper surface of the bottom and form a continuation of the end piece, the side pieces extending to the open end of the bodyfa removable end piece which is disposed at the open end of the body, the removableend piece having side tenons which fit against the side pieces and a I bottom tenon which fits against the bottom o'llthe body, side'i'c'lamps having flanges, the flanges fitting againstthe rear surfaces of the side tenons which donot extend to the rear face of the removable end piece, the side clamps engaging with the first named end piece to hold the removable end piece in position and means 'to free the side clamps gradually 'topermit of the deposit of the ref movable end piece on the ground when the i v bottom of "the body is vertically disposed;

5. In a concrete mold, a frame, a body rotatably mounted in the frame, the body having a bottom and an end piece which is permanently secured relatively thereto, removable side pieces for the body which are dis posed on either side of the upper surface of the ottom and form a continuation of the end piece, the side pieces extending to the open end of the body, a removable end piece which is disposed at the open end of the'body, the removable end piece having tenons which fit against the side pieces and a bottom tenon which fits against the bottom of the body, side clamps having flanges, the flanges fitting against the rear surfaces of the side tenons which do not extend to the rear face of the removable end piece, the side clamps engaging with. the first named end piece to hold the removable end piece in position, there being a mortise in the upper rear surface of the removable end piece, an upper clamp having a flange which fits the mortise, the upper clam) engaging the first named end piece for iolding the removable end piece in position and means to move the said clamps slowly relatively to the first named end piece to permit of the deposit of the removable end piece on the ground when the bottom of the body is vertically disposed.

In testimony whereof I have signed my name to this specification in the'presence of two subscribing witnesses.

WILLIAM HENRY ALEXANDER.

Witnesses BRYANT B. NEwooMB, REGINALD B. S'roNN. 

